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    <script>
        http("top/playlist/?cat=华语").then(res=>{
            console.log(res)
            let id = res.playlists[0].id
            return id
        }).then(res=>{
            let id = res
            http(`playlist/detail?id=${id}`).then(res=>{
                console.log(res)
                var {name,id} = res.playlist.tracks[0]
                console.log(id);
            })
        })
    </script>
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